ALEXANDRIA, Va., Sept. 14 -- 3M Innovative Properties, St. Paul, Minnesota, has been assigned a patent (9,758,435) developed by four co-inventors for a "dental ceramic article, process of production and use thereof." The co-inventors are Gallus Schechner, Herrsching, Germany, Holger Hauptmann, Sindelsdorf, Germany, Rainer K. Dittmann, Munchen, Germany, and Hans R. Schnagl, Jengen, Germany.

The patent application was filed on March 16, 2012 (14/003,409). The full-text of the patent . . .